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All Journal The Journal of Pure and Applied Chemistry Research JURNAL MUQODDIMAH : Jurnal Ilmu Sosial, Politik dan Hummaniora Walisongo Journal of Chemistry Indonesian Journal of Chemical Analysis (IJCA) Molekul: Jurnal Ilmiah Kimia Journal of Appropriate Technology for Community Services JURNAL BIOSHELL Jurnal Abdimas Kartika Wijayakusuma COMSERVA: Jurnal Penelitian dan Pengabdian Masyarakat Jurnal Indonesia Sosial Teknologi Gunung Djati Conference Series Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service Bohr: Jurnal Cendekia Kimia
Sari, Meiyanti Ratna Kumala
Universitas Palangka Raya, Kalimantan Tengah, Indonesia
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Advances in Mesoporous Silica Nanoparticles: Synthesis, Characterization, and Biomedical Uses Saputra, Ozi Adi; Safitriono, Wahyu Nur; Istiqomah, Annisa; Kumalasari, Meiyanti Ratna; Irmawan, Muhammad; Wibowo, Fajar Rakhman
Indonesian Journal of Chemical Analysis (IJCA) Vol. 7 No. 2 (2024): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol7.iss2.art9

Abstract

Mesoporous silica nanoparticles (MSNs) have drawn significant attention due to their exceptional properties and diverse range of applications, particularly in nanomedicine. The distinctive properties of MSNs, such as their high surface area, tunable pore size, and versatile surface chemistry, make them ideal candidates for various biomedical applications. This review aims to present a detailed understanding of MSNs, from synthesis and characterization to their versatile applications in biomedicine, highlighting their significant potential in advancing healthcare technologies. The synthesis methods for MSNs were comprehensively discussed, emphasizing the influence of parameters like solvent, base, alkoxysilane concentrations, and template surfactants on the size and shape of the nanostructures. Different types of MSNs, including MCM-41, SBA-15, KIT-6, and hollow MSNs, are discussed, along with their synthesis protocols and unique characteristics. The review also covers various spectroscopic techniques, such as XRD, XPS, FTIR, NMR, and fluorescence spectroscopy, which are crucial for characterizing MSNs. Furthermore, the biomedical applications of MSNs are highlighted, demonstrating their potential in drug delivery systems, imaging, and diagnostics. The review concludes with a discussion of the future perspectives and challenges in the field, providing insights into potential developments and the prospects for clinical translation.
Antioxidant Potential of Secondary Metabolite from Kelakai (Stenochlaena palustris) as a Natural Growth Promoter Through Inhibition of Inducible Nitrite Oxide Synthase (iNOS) Irmawan, Muhammad; Kumalasari, Meiyanti Ratna; Sandriya, Ardi; Fariz Noorrahman, Nabil; Ysrafil, Ysrafil; Tesalonika, Lidya
The Journal of Pure and Applied Chemistry Research Vol. 14 No. 1 (2025): Edition January-April 2025
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2025.014.01.6534

Abstract

Kelakai (Stenochlaena palustris), a plant native to Central Kalimantan, is recognized for its potent antioxidant properties. This study aimed to investigate the preparation, extraction, phytochemical composition, antioxidant potential, and molecular interactions of secondary metabolites derived from Kelakai, emphasizing its health-promoting benefits and possible use as a natural growth enhancer. The findings revealed that the Kelakai extract contained various secondary metabolites, including alkaloids (8.868%), flavonoids (5.3%), saponins (10.76%), phenolics (1.246%), tannins (0.067%), and triterpenes (30.7%). The extract demonstrated a powerful antioxidant effect, with an IC50 value of 44.81 μg/mL. Molecular docking analysis identified chlorogenic acid and eucalyptol as essential compounds contributing to the extract's antioxidant activity. These compounds effectively inhibit the iNOS protein, with binding free energy (ΔGbinding) values of -10.3044 kcal/mol and -6.0872 kcal/mol, respectively. These findings suggest that kelakai extract possesses significant antioxidant potential and may offer valuable applications as a natural growth promoter for broiler chickens.
Identifikasi Dinamika Kelompok Usaha Pengrajin Purun Nusa Sehati di Desa Tumbang Nusa Kabupaten Pulang Pisau Kalimantan Tengah Rafsanjani, Muhamad Arief; Adiwijaya, Saputra; Misonia B, Siti Unvaresi; Kumalasari, Meiyanti Ratna
Jurnal Ilmiah Muqoddimah: Jurnal Ilmu Sosial, Politik dan Hummaniora Vol 8, No 4 (2024): November 2024
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jim.v8i4.2024.1936-1941

Abstract

UMKM saat ini mengalami tantangan tersendiri dalam pengembangan unit usahanya, terlebih yang berbasis pada unit usaha bersama. Salah satu UMKM yang mengalami banya dinamika adalah TK – PPEG (Tim Kerja Perlindungan dan Pengelolaan Ekosistem Gambut) Nusa Sehati di Desa Tumbang Nusa, Kabupaten Pulang Pisau, Kalimantan Tengah. Kelompok Nusa Sehati merupakan kelompok usaha bersama berbasis pada produk kerajinan purun. Kajian pada artikel ini, dengan menggunakan Metode Penelitian Kualitatif, mencoba untuk melihat dinamika tantangan persoalan kelompok usaha bersama tersebut. Terdapat tiga persoalan dari kelompok usaha ini, pertama terkait proses produksi dari kerajinan purun yang masih menggunakan matahari. Kedua monotonnya hasil produk terutama dalam pewarnaan, dan terakhir terkait pemasaran dan promosi produk yang dihasilkan.Kata kunci: Digital Marketing, Purun, Produksi,
Pemanfaatan Ekoenzim dari Limbah Kulit Nanas dan Jeruk sebagai Disinfektan Alami Irmawan, Muhammad; Pramudita, Dimas; Nababan, Jesika; Imelya, Marsya; Sari, Meiyanti Ratna Kumala
JURNAL BIOSHELL Vol 14 No 2 (2025): Oktober
Publisher : Universitas Islam Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56013/bio.v14i2.4612

Abstract

Ekoenzim merupakan suatu produk hasil fermentasi dari  limbah organik seperti sisa buah dan sayuran. Limbah kulit nanas menjadi salah satu sisa pangan yang berpotensi digunakan sebagai bahan baku produk ekoenzim. Oleh karena itu, dilakukan penelitian untuk membuat dan mengidentifikasi potensi ekoenzim dari limbah kulit nanas melalui uji fenolik, saponin, organoleptik dan hedonik. Hasil menunjukkan 4 variasi ekoenzim memiliki potensi sebagai disinfektan berdasarkan nilai pH dan mengandung senyawa fenolik (V1-4) dengan total fenolik berturut-turut 12.9, 67.8, 115 dan 146 mg/L).  Selain itu hasil uji organoleptik dan hedonik menunjukkan bahwa 37% panelis menyukai V4 ekoenzim, (V3) 27% dan 18% untuk V1,2. Ekoenzim V4 juga mendapatkan kesukaan paling banyak pada survei kesukaan terhadap variasi ekoenzim, yaitu sebesar 31%. Sehingga V4 menjadi paling berpotensi sebagai disenfektan dan paling disukai.
Rice Husk Ash: A Promising Heavy Metal Adsorbent For Wastewater Treatment Kumalasari, Meiyanti Ratna; Beladona, Siti Unvaresi Misonia; Gracia, Amanda Natania; Sugiyani, Tina; Wulandari, Oktavia Rahmi; Imelya, Marsya; Syaima, Husna; Hanif, Qonita Awliya
Walisongo Journal of Chemistry Vol. 7 No. 1 (2024): Walisongo Journal of Chemistry
Publisher : Department of Chemistry Faculty of Science and Technology UIN Walisongo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21580/wjc.v7i1.18852

Abstract

The primary polluter of the environment is liquid waste. Silica is one substance that can be utilized to minimize water pollution. Silica can be produced from agricultural biomass waste, such as rice husk ash. This study investigated the preparation of rice husk ash and the optimal synthesis method for producing bio-silica. A literature review of studies on rice husk ash, heavy metals, and adsorbents was conducted. The findings indicated that boiling rice husk at 800°C and washing with HCl produced high-purity silica. XRD (X-ray diffraction), FT-IR (Fourier transform infrared) spectrophotometers, and ED-XRF (Energy Dispersive X-ray fluorescence) were employed to characterize the rice husk ash. The precipitation, sol-gel, acidification, and hydrothermal methods were compared for bio-silica synthesis. The synthesized bio-silica can be used as a heavy metal absorbent for various metal ions, including Pb2+, Zn2+, Mn2+, Cu2+, As3+, As5+, and Cd2+.
Sifat Perovskit sebagai Material Elektroda untuk Baterai Lithium-Ion (LIB): Review Beladona, Siti Unvaresi Misonia; Purwanto, Ferry; Jumiati; Simanjuntak, Elfrida Roulina; Simarmata, Sari Namarito; Kumalasari, Meiyanti Ratna; Iqbal, Rendy Muhamad
Bohr: Jurnal Cendekia Kimia Vol 1 No 01 (2022): Bohr: Jurnal Cendekia Kimia Vol 01 No 01
Publisher : Program Studi Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Palangka Raya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36873/bohr.v1i01.5572

Abstract

Baterai Lithium-ion (baterai Li-ion or LIB) merupakan baterai isi ulang yang telah menarik banyak perhatian sebagai sumber daya yang sangat menjanjikan karena memiliki kepadatan daya dan energi yang sangat baik, sehingga memiliki kemampuan pengisian daya yang stabil dan berbiaya rendah. Baterai Li-ion banyak digunakan pada kendaraan listrik, perangkat elektronik portabel, industri militer, dan lain sebagainya. Hingga saat ini, penelitian untuk mengembangkan teknologi baterai Li-ion terus dilakukan, yang berfokus pada kepadatan energi, daya tahan, biaya, dan keselamatan intrinsik. Bahan elektroda dengan konduktivitas ionik dan elektronik yang tinggi diperlukan untuk baterai Li-ion isi ulang dengan kepadatan energi yang besar. Salah satu material yang dapat diaplikasikan sebagai bahan elektroda adalah perovskit. Dalam beberapa tahun terakhir, bahan perovskit (rumus umum ABO3) telah menerima banyak perhatian untuk kristal kubik sederhana dan sifat fisik beragam yang memungkinkan penggunaannya dalam berbagai teknologi. Sifat fisik dan kimia yang sangat baik dari perovskit membuatnya cocok untuk berbagai aplikasi, khususnya sebagai material untuk baterai Li-ion.
Peningkatan Produktivitas Hasil Pertanian Melalui Pelatihan Pembuatan Pupuk Organik Cair dari Tanaman Purun Kalalinggi, Septaria Yolan; Kumalasari, Meiyanti Ratna; Beladona, Siti Unvaresi Misonia; Putra, Riandy; Pratika, Remi Ayu
Journal of Appropriate Technology for Community Services Vol. 6 No. 1 (2025)
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jattec.vol6.iss1.art9

Abstract

The influence of the utilization of chemical fertilizers on agricultural land has a negative impact on the environment since it can reduce soil fertility and pollute air and water. Currently, the use of chemical fertilizers is starting to be reduced. The development of organic fertilizers derived from natural ingredients began to be developed, where the advantages of using organic fertilizers are easy to obtain, environmentally friendly, and low production costs. The Community Empowerment Assistance Lecturer Program was carried out in Tuwung Village, Pulang Pisau Regency, Central Kalimantan. This program is carried out in order to empower farmers as an effort to increase the productivity of their agricultural products. The aims of this program are; 1). Provide training to farmers related to how to make liquid organic fertilizer from purun plants; and 2).  Determine the effectiveness of the implementation of training on increasing farmers' knowledge in making liquid organic fertilizer. Training activities were presented to the introduction of purun plants and their potential as materials for making liquid organic fertilizer. Next, the activity continued with a demonstration of how to make liquid organic fertilizer from purun plants. Finally, the farmers were asked to practice directly making liquid organic fertilizer. The results of this training had an positive response on the knowledge and skills of farmers in Tuwung Village, Pulang Pisau Regency, in making liquid organic fertilizer. In addition, this activity is considered effective and efficient based on the results of the evaluation in accordance with the target achievement. 
Optimasi Konsentrasi Ninhidrin Dalam Analisis Aspartam Secara Spektrofotometri Uv-Visible Dan Aplikasinya Untuk Analisis Minuman Energi Pereiz, Zimon; Chuchita, Chuchita; Kumalasari, Meiyanti Ratna; Nafisah, Zahrotun
Jurnal Indonesia Sosial Teknologi Vol. 4 No. 4 (2023): Jurnal Indonesia Sosial Teknologi
Publisher : Publikasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59141/jist.v4i4.612

Abstract

Dalam penelitian ini telah dilakukan optimasi konsentrasi ninhidrin dan validasi metode analisis aspartam secara spektrofotometri UV-Visible menggunakan pereaksi ninhidrin. Prosedur analisis ini juga diaplikasikan untuk penentuan aspartam dalam produk minuman energi. Optimasi kondisi analisis meliputi panjang gelombang dan konsentrasi ninhidrin. Validasi metode analisis terdiri dari penentuan sensitivitas, presisi, linearitas, limit deteksi, dan limit kuantifikasi. Hasil penelitian menunjukkan bahwa konsentrasi ninhidrin yang optimum adalah 0,084 M untuk 2 mL, yang setara dengan  0,168 mmol untuk setiap mol aspartam. Kurva kalibrasi memberikan hubungan yang linear antara absorbansi dengan konsentrasi dengan rentang 0 – 19 mM dengan koefisien regresi 0,997. Metode ini memiliki sensitivitas serta presisi yang cukup  tinggi, dengan limit deteksi sebesar 1,83x10-3 mol/L dan limit kuantifikasi sebesar 6,10x10-3 mol/L. Hasil penentuan kandungan aspartam dalam minuman energi dengan metode yang telah dioptimasi dan divalidasi menunjukkan hasil untuk sampel serbuk sebesar 618,05 mg/g sampel dan untuk sampel cair sebesar 11,69 mg/mL sampel.
Co-Authors Adiwijaya, Saputra Anasthasya Isaura Silalahi Annisa Istiqomah, Annisa Ardi Sandriya Ariska, Risya Chuchita Chuchita, Chuchita Dongoran, Junita Elfrida Ratnawati Fajar Rakhman Wibowo Fariz Noorrahman, Nabil Gracia, Amanda Natania Hanna Esrani Togatorop Husna Syaima Imelya, Marsya Iqbal, Rendy Muhamad Irmawan, Muhammad Jeddah Yanti Jesika Nababan Jumiati Kalalinggi, Septaria Yolan Maknun, Luluil Mokhamat Ariefin Nababan, Jesika Nafisah, Zahrotun Ozi Adi Saputra, Ozi Adi Paksi, Pandu Gizta Rapi Pramudita, Dimas Purwanto, Ferry Qonita Awliya Hanif Rafsanjani, Muhamad Arief Rafsanjani, Muhammad Arief Rahman, Sudarman Remi Ayu Pratika Riandy Putra Rizki Rachmad Saputra Safitriono, Wahyu Nur Simangunsong, Sri Yulandari Simanjuntak, Elfrida Roulina Simarmata, Sari Namarito Sipayung, Ronald Regen Siska, Amelia Siti Unvaresi Misonia Beladona Sugiyani, Tina Sulistiawati, Putri Tampubolon, Mulani Jeni Lestari Tesalonika, Lidya Venty Suryanti Wenika Simbolan Wulandari, Oktavia Rahmi Ysrafil, Ysrafil Yuni Damayanti Nainggolan Zahrotun Nafisah Zimon Pereiz